CVE-2011-1556

Exp

SQL injection vulnerability in plugins/pdfClasses/pdfgen.php in Andy's PHP Knowledgebase (Aphpkb) 0.95.4 allows remote attackers to execute arbitrary SQL commands via the pdfa parameter.

Published: 2011-04-04 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-1556 is rated High Exploit Risk (71.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.61%). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2011-1556

EDB-ID Source Kind Published Link
17061 exploit_db edb 2011-03-29 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-1556

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-08 1.14% 1.61% +0.47%
2 2025-12-09 1.22% 1.14% -0.08%
3 2025-07-19 — 1.22% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-1556

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2011-1556

Affected software / configurations for CVE-2011-1556

Vendor Product Version Raw CPE
aphpkb aphpkb 0.95.4 cpe:2.3:a:aphpkb:aphpkb:0.95.4:*:*:*:*:*:*:*

References for CVE-2011-1556

cvelogic Threat Intelligence